Panel condenser



May 4,1926.

A. KENT PANEL CONDENSER Filed May 12, 1925 INVENTOR.

BY My 5191M 1 ATTORNEY.

Patented May 4,1926. I I v i g p f if UNITED STATES PATENT OFFICE.

ARTHUR ATWATER KENT, F ABDMOIRE, PENNSYLVANIA.

, PANEL CONDENSER.

Application fi ed May 12, 1925. Serial No. 29,658.

To all whom it may concern: ceiving set with which co-operates the con-65 Be it known that 1, ARTHUR ATWA ER denser structure illustrated.KENT, a citizen of the United States, resid- The rotor bearing member 4is in the form ing at Ardmore, county of Montgomery, and of a metalsleeve, preferably chambered as State of Pennsylvania, have inventedcerindicated at 5. The bearing sleeve 4 has on tain new and usefulImprovements in Panel its exterior a portion 7 of reduced diameter 60Condensers, of which the following is a extending through a hole ofsimilar diaspecification. meter in the panel 1, with its ends spun or'My invention relates to variable electriworked over into the form ofthe flange 7 cal condensers of the plate type for var1abetween which andthe shoulder on the tion of capacity, as in tuning of circuits, sleeve 4the panel 1 is snugly gripped, particularly circuits traversed by highfrewhereby the bearing sleeve 4 is rigidly quency current oroscillations, asin radio fixed to the panel. t 4 At its end remote fromthe plate 1 the In accordance with my invention the sleeve 4 is providedwith a conical or equivapanel, plate or wall of a radio receiving lentseat 8, upon which bears the conical or To set, and more particularlythe metal panel similar enlargement 9 on the rotor shaft 10, or wall ofa cabinet enclosing the recelvwhich latter rotates upon the bearings 6ing set, is comprehended in or is a comand 8 in the sleeve 4 andprojects beyond-the ponent part of a condenser structure or unit same tothe opposite or front side of the comprising a stator element of one ormore plate 1, where there is secured to the shaft plates carried upon abolt or rod secured,1n- 10 the operating handle or knob 11, integraldependently of the rotor and its suppor with which is the dial 12,carrying the usual to the panel or wall, either dlrectly, or t0graduations for co-operation with a pointer an insulating member whichin turn is seor marker on the plate 1. The members 11 cured directly tothe panel or wall. and 12 are preferably constituted of molding Myinvention resides in structure of the insulating material, such asbakelite or the character hereinafter described and claimed. like.Molded in the knob structure is the For an' illustration of one 'of theforms metallic insert member 13 through a wall of my invention may take,reference 1s tO be which extends the 'set screw 14 for securing had tthe accompanying drawing, in which: the sleeve 13, and therefore theknob and 85 Figure 1 is a vertical sectional View, partdial, to theshaft 10, whereby the shaft 10 ly in elevation, of structure embody g mymay be rotated to effect adjustment of the invention. hereinafterdescribed rotor structure.

Fig. 2 is a rear elevational view of the B t th d of member 13 d thstructure shown in Fig. 1. plate 1 is disposed the bowed spring 15, hav-Fig. 3 is a horizontal sectional View, parting th hol or aperture 16through which ly in plan, of structure shown in F1g. 1- the shaft 10loosely extends. The spring 15 Fig. 4 is an end elevational VleW 0f h isheld under compression between the memspring. ber 13 and plate 1,thereby exerting a lon- R f rring to the drawing, 1 is the sheet'gitudinal thrust toward the left upon the 95 metal panel, plate orwall, of a cabinet or shaft 10, as viewed in Fig. 1, causing the housingcontaining the elements of a radio onical h aring 9 of th haft nu ly toreceiving set, as described in my appllcation bear in the conicalbearing 8 in the bearing Serial No. 28,8 filed y 1925, and is member 4.The spring 15 is free or floats comprehended in or is a component of onebetween the members 1 'and 13, for it is not or more condenser units ofthe receiving secured to either of those members or to any set. othermember.

On the inner side of the panel 1 is the ledge Upon the part of the shaft10 overhanging member 2 of sheet metal, having the downbeyond orextending to the right of the bearwardly extending flange 3 secured, asby ing'member 4, as indicated inFig. 1, are spot-Welding, to thepanel 1. secured one or more parallel conducting Upon the ledge member 2may be carried leaves or plates 17 constituting the rotatable otherdevices or elements of the radio rearmature assembly or rotor element ofthe or the like.

Co-acting with the rotor plates 17 are the stator plates or leaves 19disposed substantially parallel with each other and suitably s aced topermit interleaving therewith of the rotor plates, as well understood inthe art.

The stationary armature plate assembly or stator comprises the plates 19through apertures in which extend the rods or bolts 20. Surrounding eachof the rods or bolts 20 and serving as spacers for the plates 19 are theWashers 21. The nut 22, threaded upon each of the rods 20, serves as anabutment .between which and a washer 23, held by a nut 24, the plates 19and washers 21 are confined.

The several rods or bolts 20 may be di rectly and individually securedto the panel or plate 1, but, as indicated, and particularly when therotor is in electrical communication with the metal panel 1, there isutilized for each bolt 20 an intervening member 25 of insulatingmaterial secured to the panel 1 by any suitable means, as for example byscrew 26.

' The members 25 are preferably threaded onto the bolts or rods 20 asindicated, and the osition of the stator structure lon itudinally of theaxis of the shaft 10 is ad ustable and determinable by the nuts 27threaded upon the bolts or rods 20 and abutting hgainst' the members 25.

The structure above described is broadly of the character disclosed inthe aforesaid application, particularly in that the stator structure issupported upon or secured to the panel 1 independently of the mountingor support of the rotor element, whereby the panel 1 is a component partof the condenser unit, and whereby the positions of the rotor and statorelements with respect to each other are determined by their re spectiveindependent attachments to the panel 1. In the structure hereindescribed and claimed the stator element is attached to the panel 1 atone or more points, each of the attachments is adjustable to efl'ectadjustment of distance of the stator structure from the panel 1 and,preferably, each attachment comprises a member of insulating materialfor supporting and determining the distance of the stator structure fromthe panel 1 and for insulating the stator structure from the panel.

What I claim is:

1. The combination with a paneLof rotor and stator elements of acondenser, a support for said rotor element on said panel,

said stator element comprising a rod, plate structure carried by saidrod in co-operative relation with the plate structure of the rotorelement, and means securing said rod tosaid panel independently of saidrotor support, whereby said panel is included in a condenser unit withsaid rotor and stator elements.

2. The combination with a panel, of rotor and stator elements of acondenser, a support for said rotor element on said panel, said statorelement comprising a rod, plate structure carried by said rod inco-operative relation with the plate structure of the rotor element, asupport for said rodsecured to said panel independently of said rotorsupport'to include said panel in a condenser unit with said rotor andstator elements, and means for effecting longitudinal adjustment of saidrod with respect to said rod support.

3. The combination with a panel, of rotor and stator elements of acondenser, a support for said rotor element on said panel, said statorelement comprising a rod, plate structure carried by said rod inco-operative relation with the plate structure of the rotor element, asupport of insulating material for said rod secured to said panelindependently of said rotor support to include said panel in a condenserunit with said rotor and stator elements, and means for effectinglongitudinal adjustment of said rodwith respect to said rod support.

4. The combination with a panel, of rotor and stator elements of acondenser, a support for said rotor element on said panel, said statorelement comprising a plurality of rods, a plurality of plates spacedfrom each other and carried by said rods and with which rotor platesco-act, and means for individually securing said rods on said anelindependently of said rotor support or including said panel in acondenser unit with said rotor and stator elements.

5. The combination with apanel, of rotor and stator elements of acondenser, a support for said rotor element on said panel,

said stator element comprising a plurality of rods, a plurality ofplates spaced from each other and carried by said rods and with whichrotor plates. co-act, and means for securing said stator element on saidpanel independently of said rotor support to include said panel in acondenser unit with said rotor and stator elements, said meanscomprising individual supporting members 'for said rods securedindependently of each other to said panel.

6. The combination with a panel, of rotor and stator elements of acondenser, 21. support for said rotor element on said panel, said statorelement comprising a plurality of rods,

a plurality of plates spaced from each other and carried by said rodsand with which rotor plates co-act, and means for securing said statorelement on said panel independently of said rotor support to includesaid panel in a condenser unit with said rotor and stator elements, saidmeans comprising individual supporting members of insulating materialfor said rods secured independently of each other to said panel.

7 The combination with a panel, of rotor and stator elements of acondenser, a support for said rotor element on said panel, said statorelement comprising a plurality of rods, a pluralityof plates spaced fromeach other and carried by said rods and with which rotor plates co-act,means -for securing said stator element on said panel independently ofsaid rotor support to include said panel in acondenser unit with saidrotor and stator elements, said means comprising individual supportingmembers for said rods secured independently of each other to said panel,and means for adjusting said rods longitudinally with respect to saidrodsupporting members.

8. The combination with a panel, of rotor and stator elements of acondenser, a support for said rotor element on said panel,

which rotor plates co-act, means for securing said stator element onsaid panel inde-- pendently of said rotor support to include said panelin a condenser unit with said r0- tor and stator elements, said meanscomprising individual supporting members of insulating material for saidrods secured independently of each other to said panel, and means foradjusting said rods longitudinally with respect to said rod supportingmembers.

ARTHUR ATWATER KENT.

